Korre's Links
Korre doesn't understand Arseni. It would be easier if they could just blatantly hate him, and in many ways, they do, but there is an intensely dependent connection between the two of them that neither can survive without. They may fight easily, in their limited ability to communicate due to both a language and personality barrier, but their care for one another is rooted deeper than anything else. This care rears its head in dire moments, and even if Arseni leaves for months at a time, he always comes back.
It's hard to tell what Arseni is feeling. He acts cold, aloof, and irritated around Korre, something that worsens their already suffering communication due to the fact that Arseni can only speak Russian. He is known to leave for months at a time, but will always return to Korre no matter what. For what reason, we don't know. He also serves as a flawed guardian angel figure— in the end, it will be Arseni that pulls Korre's soul out of their body. They both know it.